Suzuki Engine 2002 GRAND VITARA SQ625, Руководство по обслуживанию

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ENGINE MECHANICAL (J20 ENGINE) 6A4-73
ASSEMBLY
a) Each piston (1) has stamped number (7) 1 or 2 as shown. It
represents outer diameter of piston.
b) There are also painted color (3) of red or blue, or stamped
number (6) of 1or 2 on the cylinder block (2) as shown. It
represent inner diameter of cylinder.
c) Stamped number on piston and painted mark (or stamped
number) on cylinder block should correspond. That is,
install number 2 stamped piston to cylinder which is identi-
fied with mark blue or 2 (4) and a number 1 piston to cylin-
der with mark red or 1 (3).
PISTON AND CYLINDER SPECIFICATION
Also, a letter A, B or C is stamped on piston head but ordinarily it
is not necessary to discriminate each piston by this letter.
NOTE:
Two sizes of piston are available as standard size spare
part so as to ensure proper piston-to-cylinder clearance.
When installing a standard size piston, make sure to
match piston with cylinder as follows.
3. Painted color on cylinder block 9. No.2 cylinder
4. Crankshaft pulley side 10. No.3 cylinder
5. Flywheel side 11. No.4 cylinder
8. No.1 cylinder
Piston Cylinder
Piston-to-
cylinder
clearance
Number
at the top
(mark)
Outer
diameter
Mark
Bore
diameter
1
83.9800 –
83.9900 mm
(3.3063 –
3.3066 in.)
Red
or 1
84.0101 –
84.0200 mm
(3.3075 –
3.3078 in.)
0.02 –
0.04 mm
(0.0008 –
0.0015 in.)
2
83.9700 –
83.9799 mm
(3.3059 –
3.3062 in.)
Blue
or 2
84.0000 –
84.0100 mm
(3.3071 –
3.3074 in.)
0.02 –
0.04 mm
(0.0008 –
0.0015 in.)
1. Crankshaft pulley side 6. No.2 cylinder
2. Flywheel side 7. No.3 cylinder
5. No.1 cylinder 8. No.4 cylinder